Weather-strip.



J. KAMMERBR.

WEATHER STRIP.

APPLIUATIUN FILED Ammo, 1909.

Patented Aug. 23, 1910.

JACOB KAMMERER, OF NEW YORK, N. Y.

WEATHER-STRIP.

Specication of Letters Patent.

Application filed April 20, 1909.

Patented Aug. 23, 1910.

Serial No. 491,007.

To all whom it may concern:

Be it known that I, JACOB KAMMERER, a citizen of the United States, residing at the borough of- Manhattan, cit-y of New York, in the county of New York and State of New York, have invented a certain new and useful Improvement in Teather-Strips, of which the following is a specification, ref-l erence being had therein to the accompanying drawings, forming part thereof.

My invention relates to weather strips and is particularly adapted for application at the bottoms of easement windows, the sills of which are high and which are not adapted to be used as doors.

The objects of my invention are simplicity and inexpensiveness of construction, durability, prevention of rattling, and a high degree of eiiiciency inA excluding wind, rain and dust.

Other objects and advantages will appear from the following description.

My invention includes a member adapted to be secured to one of two relatively movable parts and provided with a resilient sealing portion adapted to seat in a groove in the other part, such sealing portion being adapted to spring aside to permit the relative transverse movement of the relatively movable parts.

My invention also includes other advantageous features and several details of construction as will hereinafter appear.

I shall now describe my invention with reference to the accompanying drawings and shall thereafter point out my invention in claims.

Figure 1 is a vertical section through the lower rail of the sash and the window sill and through the weather strip. Fig. 2 is a vertical section ofthe lower rail of the sash. Fig. 3 is a vertical section of the window sill and of the weather strip carried thereby. Fig. 4 is a horizontal section of a casement window embodying my invention, the sash being swung partly open.

In the illustrated embodiment of my invention my improved weather strip is shown as applied at the bottom of the lower sash rail l of a Swingin sash of a easement window havin a winow sill 2. The sill 2 is provided wlth a rabbet 3 at the inner side of the window and has a beveled surface 4 adjacent to the rabbet 3; and the sash rail 1 is provided with a rabbet 5 at the outer side of the window, a concavely rounded groove base portion 8 at its inner edge adjacent to the bevel 4 of the sill bends upwardly and inwardly to form a convexly rounded substantially semi-circular sealing rib 9 adapted to seat in and being conformed in shape to the groove 6 in the sash rail 1. The rounded or convexly curved inclined side faces of the rib 9 permit it to yield downwardly when the sash is swung to open position (Fig. 4), while the resiliency of the metal of which the weather strip is formed brings the rib 9 back into sealing relation with the groove 6 when the sash is closed (Fig. l). The outer edge of the rib 9 is prolonged downward to form a flange 10 lying against the vertical face of the rabbet 3. The flange 10 adds t-o the neatness of appearance of the device when the window is open, but its principal function is to reinforce or strengthen the rib 9 when such rib is subjected to inward and downward pressure by the sash rail l in the closing movement of the sash.

In operation, any water which may be blown under the drip ledge 7 and penetrates between the lower rabbeted face of the sash l and the upper surface of the base 8 o-f the weather strip will have its progress arrested and be turned back by the rib 9, rising above the level of the base l, and also havin a close lit in the groove 6 against the sur ace of which it is pressed by the resiliency or the spring action of such rib. Any shrinking apart of the sash l and the sill 2 will be compensated for by the springing upward of the rib 9. The continual close it of the rib 9 in the groove 6 also precludes the entrance of dust and wind and together with the resiliency of such rib prevents rattling of the sash.

The weather strip is formed of sheet metal, which may be stamped by dies or otherwise bent to the r uired shape, sheet brass having been foun suitable for the purpose.

It is obvious that various modifications may be made in the construction shown and above particularly described within the principle and scope of my invention.

I claim:

1. A weather-tight joint comprising, in combination with two transversely relatively movable parts, one of which is provided with a groove having inclined walls, a sheet metal member having a base secured to the other part and transversely bent to form a resilient rib extending from one edge of the base and adapted to seat in the roove, the rib being provided with incline sides, the free edge of the rib being extended back ward to form a flange extending at an angie to the base, the base-oarrying'fpart being provided with a surface extending at substantially the same angle as the sald flange and eoaotive therewith. i`

2. A weather-tight 'ointbomprsing, inl

combination with the ower sash rail of a weather strip having a base secured flat 25 against the meeting face of the sill and having a rib adapted to enter the groove in the sash and having a flange extending from the rib into the rabbet of the sill.

In testimony whereof I have aflixed my 30 signature in presence of two witnesses,

JACOB KAMMERER.

Witnesses:

HENRY WEBERG, WM. ASHLEY KELLY. 

